Auction catalogs represent an important source for various types of information on works of art and artists. They can provide provenance information or a "genealogy" of a work of art. Detailed illustrations and descriptions of a work of art are usually available. They can also help to identify a particular object sold at auction. As a group they can help to trace trends and taste of a particular time period or collector.
KU owns some annual compilations of auction prices that are organized by artist's name with the pieces sold during the year listed in alphabetical order; data elements include artist's name, name of artwork, dimensions, medium, signature, auction information, price realized.
Websites for the various auction houses will usually provide a calendar of upcoming auctions as well as auction results from recent sales; some may also produce the entire catalog for an upcoming sale online. Both Christies and Sotheby's now allow online searching of upcoming and past auctions.
Journals are another good source of information on upcoming auctions.